Finding the Fourth Proportional to 18,995,867.92, 28,493,402.28 and 4,619,009.44
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Solution
The fourth proportional to 18,995,867.92, 28,493,402.28 and 4,619,009.44 is: 6,928,416.99
Step by Step Solution
- Step 1: Write the proportion equation
18,995,867.92 : 28,493,402.28 = 4,619,009.44 : x - Step 2: Convert to fraction form
18,995,867.92/28,493,402.28 = 4,619,009.44/x - Step 3: Cross multiply
18,995,867.92x = 28,493,402.28 × 4,619,009.44 - Step 4: Simplify right side
18,995,867.92x = 131,611,294,109,037.55 - Step 5: Solve for x
x = 131,611,294,109,037.55/18,995,867.92 - Step 6: Final answer
x = 6,928,416.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.